Enums.ElevationSourceType enumeration

The ElevationSourceType can be one of:

Constant	Description
`Enums.ElevationSourceTypeUnknown`	`(0)` Unknown
`Enums.ElevationSourceTypeArcGISTiledElevationSource`	`(1)` An ArcGIS tiled elevation source.
`Enums.ElevationSourceTypeRasterElevationSource`	`(2)` A raster elevation source.